When apps quit, how can i know ViewControler of there

Hi,
I have completed one application but how can we store current status of application when apps quit.
I have tabBar application and i have 4 tab bar item.
I have 3 view with each tab bar item.
when my apps quit and that time i was in 3 view so how can i know that which view has apps quit?
Thanks.

There's no single way. If your view controllers are different classes, you can key on the class name (\[\[tabBarController.selectedViewController class\] description\]), or you could implement a view controller method that returns a piece of data unique to that view controller. If you don't want to do any of that, you can store a unique integer in each managed view's tag and access it with tabBarController.selectedViewController.view.tag.

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